Problem Statement and Goals for Active-Active Connection at the Transparent Interconnection of Lots of Links (TRILL) Edge
draft-ietf-trill-active-active-connection-prob-07
Yes
(Ted Lemon)
No Objection
(Jari Arkko)
(Joel Jaeggli)
(Martin Stiemerling)
(Pete Resnick)
(Spencer Dawkins)
Note: This ballot was opened for revision 05 and is now closed.
Ted Lemon Former IESG member
(was No Objection, Discuss, Yes)
Yes
Yes
(for -06)
Unknown
Adrian Farrel Former IESG member
No Objection
No Objection
(2014-08-04 for -06)
Unknown
I have no objection to the publication of this document, but here are some points you may want to discuss with your document shepherd and responsible AD. --- CE - As in [CMT], Classic Ethernet device (end station or bridge). The device can be either physical or virtual equipment. 1. [CMT] has "Classical Ethernet device" 2. I am aware of World Acronym Depletion (WAD) [5513], but do you think it is advisable to use "CE" when that abbreviation has such a well- known meaning that shows on figures in a way that is highly similar to the positioning of your CE on your figures? --- As a problem statement, I feel you are dodging an issue when you write LAALP is usually a proprietary facility whose implementation varies by vendor. So, to be sure the LAALP operations successfully across a group of edge RBridges, those edge RBridges will almost always have to be from the same vendor. In order to have a common understanding of active-active connection scenarios, the assumptions in Section 2.1 are made about the characteristics of the LAALP and edge group of RBridges. and Other than the applicable characteristics above, the internals of an LAALP are out of scope for TRILL. Shouldn't you actually be raising this as a missing component in the toolset? A standardised LAALP would increase the flexibility and utility of TRILL in a multi-vendor environment. Your document could briefly explain how initial deployments will be proprietary, describe the limitations, state that a standardised LAALP would be beneficial, and briefly outline what such a protocol might look like (presumably built on MC-LAG) and how it needs to differ from existing offerings. You already have lots of this material, but it seems you are actively discouraging work on this topic. I can see that this might be out of scope for the current TRILL charter, and whether someone comes along later to address the requirements is for the future, but you seem to be pushing a deployment scenario where a CE can only be attached to an edge RBridge from the same vendor. --- I find section 5 disappointing! Although (of course) solution-specific security issues can only be documented in the solution documents, I should think that the active-active model introduces some interesting security issues. If the new function/architecture genuinely introduces no issues or security associations, then that is fine: I am just surprised by the fact. --- It would be nice, IMHO, if this document also described the manageability requirements to support active-active. Are there changes to OAM? How does one find out which edge RBridge is carrying which flow? What needs to be configured/inspected at the CE and the edge RBridge?
Jari Arkko Former IESG member
No Objection
No Objection
(for -06)
Unknown
Joel Jaeggli Former IESG member
No Objection
No Objection
(for -06)
Unknown
Kathleen Moriarty Former IESG member
No Objection
No Objection
(2014-08-07 for -06)
Unknown
I second Adrian's point, the same one made in the SecDir review. While individual solutions may have specific security concerns or risks, I would think that there are some risks that would broadly apply to ant solution that should be described here and perhaps even setting security requirements for any solution that follows. https://www.ietf.org/mail-archive/web/secdir/current/msg04939.html
Martin Stiemerling Former IESG member
No Objection
No Objection
(for -06)
Unknown
Pete Resnick Former IESG member
No Objection
No Objection
(for -06)
Unknown
Spencer Dawkins Former IESG member
No Objection
No Objection
(for -06)
Unknown
Stephen Farrell Former IESG member
No Objection
No Objection
(2014-08-07 for -06)
Unknown
What Kathleen said.